Diesel bellhousing patterns

Anyone know what bellhousing patterns Detroit Diesel used on the 353, 471 and 671? I'm looking to put something different in my M715 and possibly my early Bronco. I may use a 4BT in the Bronco and I know they use GM pattern (SBC, BBC)

THX

Greg

Dude, 4-71 is kinda heavy and the 6-71 is just big. I think the 3-53 has an SAE#2 or #3 bolt pattern. They can usually vary from one model to the next.

I know that at work we have some doodlebugs (articulated steer swamp buggies used to drill seismograph holes) that have a 4 cyl detroit and a gm sm465 truck 4spd. I looked at them once and don't remember seeing an adapter plate so I know someone makes a housing for it. I will try to get a casting # the next time they show up.

I was leaning away from the 671 due to the size and weight issue.....but I'm not ruling anything out at this point. I once saw a guy with a 671 in a Chev 2wd pickup at New England dragway run high 9's w/ propane, mid 10's w/o. I wish I had checked out his setup closer.

GB

Man, I can't imagine how much noise one of these trucks would make with a two-stroke detroit,200 x-case, and5.89 gears

Gama Goats had GM four speeds hooked to their aluminum two stroke detroits! Somewhat popular swap is an SBC bolt in to the tranny.

somewhat is the word, as Gamma Goats are fairly rare on UT highways at least LOL..

Earlier I posted about the Cummins/GM auto adapter that MUST be available somewhere. Apparently this is an industrial/commercial combo, found commonly in say, step vans. So it's possible that the adapter is still out there from the factory, either GM or the diesel manufacturer, for use in just such a vehicle. Might be worth checking out.

CAT wanted $500 for a stock adapter going from #2 to #1 bell housing circle. The stock M35's have a plate that goes from like a #0 on the multifuel to the #2 (i think) on the CAT. I ended up drilling my own patter on that plate...cost me about $3 in socket head cap screw and a little grinding on the bellhousing.

May be a change in plans.....I was just offered a running 199? Dodge 3500 2wd Cummins 5-spd truck for $1200. It has a cast iron trans in it (are those Getrag pieces of crap aluminum?)

GB

I think so and I believe they don't have a seperate bellhousing

The cummins diesel is a great motor. Not sure about the trans though. If you could make the cummins work go for it. I am not sure so don't hold me to this and I'm sure someone else will know better, but couldn't you mate a GM trans to the cummins? Wondering minds want to know...:)

On all 93 and newer Dodge Cummins mated to a 5-speed. The trans is a NV4500. The input shaft is different than the gas ones, but it is a NV4500.

The cummins b block 4 and 6 cylinder engines have an adapter plate that bolts to the back of the block. If your engine comes out of a Chevy chassis step van it will bolt to a Chevy trans. If you use a 700 r4 the bolt pattern on the flex plate is for the Chevy 400 auto torque converter so you will have to redrill for the 700 torque converter or use the 400 torque converter, either option is OK. If your engine is from a Dodge it will be the Dodge bolt parrern. I am sure Cummins also makes adapter plates for SAE bolt patterns and other bolt patterns also. It would be possible to take a Chevy 4b engine and change to a Dodge addapter and run a Dodge tranny or the other way around and run a Chevy tranny on the 6b Dodge engine or one of many other combos. The point is, running the combo you want is an easy change providing you can locate the adapter plate and flywheel/ flexplate you are looking for for a reasonable price. Try a schoolbus junk yard if you want a good strong non overdrive auto, alot of Allison transmissions available there, they are an SAE bolt pattern I believe

Semper Fi,
Devildog
bobdevlin50@msn.com

Yes, the Allisons have an SAE ring, I'm unsure of the # size though. Maybe #3.